package org.deadline.model.baseapp;

import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import org.deadline.model.config.EnumerationDataOnDemand;
import org.deadline.model.config.Guid;
import org.deadline.repository.baseapp.PrincipalRepository;
import org.deadline.service.baseapp.PrincipalService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.stereotype.Component;

@Configurable
@Component
public class PrincipalDataOnDemand {

	private Random rnd = new SecureRandom();

	private List<Principal> data;

	@Autowired
    private EnumerationDataOnDemand enumerationDataOnDemand;

	@Autowired
    PrincipalService principalService;

	@Autowired
    PrincipalRepository principalRepository;

	public Principal getNewTransientPrincipal(int index) {
        Principal obj = new Principal();
        setGuid(obj, index);
        setCreationDate(obj, index);
        setDeleted(obj, index);
        setModificationDate(obj, index);
        return obj;
    }

	public void setGuid(Principal obj, int index) {
        Guid embeddedClass = new Guid();
        setGuidTenentId(embeddedClass, index);
        setGuidUuid(embeddedClass, index);
        obj.setGuid(embeddedClass);
    }

	public void setGuidTenentId(Guid obj, int index) {
        String tenentId = "tenentId_" + index;
        if (tenentId.length() > 100) {
            tenentId = tenentId.substring(0, 100);
        }
        obj.setTenentId(tenentId);
    }

	public void setGuidUuid(Guid obj, int index) {
        String uuid = "uuidxxxxxxxxxxxxxxxxxxxxxxxxxx_" + index;
        if (uuid.length() > 32) {
            uuid = uuid.substring(0, 32);
        }
        obj.setUuid(uuid);
    }

	public void setCreationDate(Principal obj, int index) {
        Date creationDate = new GregorianCalendar(Calendar.getInstance().get(Calendar.YEAR), Calendar.getInstance().get(Calendar.MONTH), Calendar.getInstance().get(Calendar.DAY_OF_MONTH), Calendar.getInstance().get(Calendar.HOUR_OF_DAY), Calendar.getInstance().get(Calendar.MINUTE), Calendar.getInstance().get(Calendar.SECOND) + new Double(Math.random() * 1000).intValue()).getTime();
        obj.setCreationDate(creationDate);
    }

	public void setDeleted(Principal obj, int index) {
        Boolean deleted = true;
        obj.setDeleted(deleted);
    }

	public void setModificationDate(Principal obj, int index) {
        Date modificationDate = new GregorianCalendar(Calendar.getInstance().get(Calendar.YEAR), Calendar.getInstance().get(Calendar.MONTH), Calendar.getInstance().get(Calendar.DAY_OF_MONTH), Calendar.getInstance().get(Calendar.HOUR_OF_DAY), Calendar.getInstance().get(Calendar.MINUTE), Calendar.getInstance().get(Calendar.SECOND) + new Double(Math.random() * 1000).intValue()).getTime();
        obj.setModificationDate(modificationDate);
    }

	public Principal getSpecificPrincipal(int index) {
        init();
        if (index < 0) {
            index = 0;
        }
        if (index > (data.size() - 1)) {
            index = data.size() - 1;
        }
        Principal obj = data.get(index);
        Long id = obj.getId();
        return principalService.findPrincipal(id);
    }

	public Principal getRandomPrincipal() {
        init();
        Principal obj = data.get(rnd.nextInt(data.size()));
        Long id = obj.getId();
        return principalService.findPrincipal(id);
    }

	public boolean modifyPrincipal(Principal obj) {
        return false;
    }

	public void init() {
        int from = 0;
        int to = 10;
        data = principalService.findPrincipalEntries(from, to);
        if (data == null) {
            throw new IllegalStateException("Find entries implementation for 'Principal' illegally returned null");
        }
        if (!data.isEmpty()) {
            return;
        }
        
        data = new ArrayList<Principal>();
        for (int i = 0; i < 10; i++) {
            Principal obj = getNewTransientPrincipal(i);
            try {
                principalService.savePrincipal(obj);
            } catch (ConstraintViolationException e) {
                StringBuilder msg = new StringBuilder();
                for (Iterator<ConstraintViolation<?>> iter = e.getConstraintViolations().iterator(); iter.hasNext();) {
                    ConstraintViolation<?> cv = iter.next();
                    msg.append("[").append(cv.getConstraintDescriptor()).append(":").append(cv.getMessage()).append("=").append(cv.getInvalidValue()).append("]");
                }
                throw new RuntimeException(msg.toString(), e);
            }
            principalRepository.flush();
            data.add(obj);
        }
    }
}
